@article{Yangarxivpd,
  author    ={Tianbao Yang and Mehrdad Mahdavi and  Rong Jin 
              and  Shenghuo Zhu},
  title     = {An Efficient Primal-Dual Prox Method for Non-Smooth
Optimization},
  journal = {arxiv},
  year      = {2012},
  pages     = {}
  }